| Company | Timeline | Status | |
| Psappha Director • Lecturer | 20 Sep 1996←20 Years→20 Jan 2017 | Dissolved | |
| The Square Chapel Trust Director • Lecturer | 23 May 1991←5 Years→12 Aug 1996 | Dissolved | |
| Square Trading Limited Director • Lecturer | 25 Sep 1990←6 Years→23 Apr 1997 | Dissolved | |
